mirror of
https://github.com/woodpecker-ci/woodpecker.git
synced 2024-11-26 11:51:02 +00:00
324 lines
9.2 KiB
Go
324 lines
9.2 KiB
Go
// Copyright 2018 Drone.IO Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package main
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import (
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"context"
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"crypto/tls"
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"errors"
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"fmt"
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"net/http"
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"net/http/httputil"
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"net/url"
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"strings"
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"time"
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"github.com/caddyserver/certmagic"
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"github.com/gin-gonic/gin"
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prometheus_http "github.com/prometheus/client_golang/prometheus/promhttp"
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"github.com/rs/zerolog"
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"github.com/rs/zerolog/log"
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"github.com/urfave/cli/v2"
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"golang.org/x/sync/errgroup"
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"go.woodpecker-ci.org/woodpecker/v2/server"
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"go.woodpecker-ci.org/woodpecker/v2/server/cron"
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"go.woodpecker-ci.org/woodpecker/v2/server/router"
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"go.woodpecker-ci.org/woodpecker/v2/server/router/middleware"
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"go.woodpecker-ci.org/woodpecker/v2/server/web"
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"go.woodpecker-ci.org/woodpecker/v2/shared/logger"
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"go.woodpecker-ci.org/woodpecker/v2/shared/utils"
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"go.woodpecker-ci.org/woodpecker/v2/version"
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)
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const (
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shutdownTimeout = time.Second * 5
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)
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var (
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stopServerFunc context.CancelCauseFunc = func(error) {}
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shutdownCancelFunc context.CancelFunc = func() {}
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shutdownCtx = context.Background()
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)
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func run(c *cli.Context) error {
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if err := logger.SetupGlobalLogger(c, true); err != nil {
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return err
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}
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ctx := utils.WithContextSigtermCallback(c.Context, func() {
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log.Info().Msg("termination signal is received, shutting down server")
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})
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ctx, ctxCancel := context.WithCancelCause(ctx)
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stopServerFunc = func(err error) {
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if err != nil {
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log.Error().Err(err).Msg("shutdown of whole server")
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}
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stopServerFunc = func(error) {}
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shutdownCtx, shutdownCancelFunc = context.WithTimeout(shutdownCtx, shutdownTimeout)
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ctxCancel(err)
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}
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defer stopServerFunc(nil)
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defer shutdownCancelFunc()
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// set gin mode based on log level
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if zerolog.GlobalLevel() > zerolog.DebugLevel {
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gin.SetMode(gin.ReleaseMode)
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}
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if c.String("server-host") == "" {
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return fmt.Errorf("WOODPECKER_HOST is not properly configured")
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}
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if !strings.Contains(c.String("server-host"), "://") {
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return fmt.Errorf("WOODPECKER_HOST must be <scheme>://<hostname> format")
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}
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if _, err := url.Parse(c.String("server-host")); err != nil {
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return fmt.Errorf("could not parse WOODPECKER_HOST: %w", err)
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}
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if strings.Contains(c.String("server-host"), "://localhost") {
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log.Warn().Msg(
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"WOODPECKER_HOST should probably be publicly accessible (not localhost)",
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)
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}
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_store, err := setupStore(ctx, c)
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if err != nil {
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return fmt.Errorf("can't setup store: %w", err)
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}
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defer func() {
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if err := _store.Close(); err != nil {
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log.Error().Err(err).Msg("could not close store")
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}
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}()
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err = setupEvilGlobals(ctx, c, _store)
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if err != nil {
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return fmt.Errorf("can't setup globals: %w", err)
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}
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// wait for all services until one do stops with an error
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serviceWaitingGroup := errgroup.Group{}
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log.Info().Msgf("starting Woodpecker server with version '%s'", version.String())
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startMetricsCollector(ctx, _store)
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serviceWaitingGroup.Go(func() error {
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log.Info().Msg("starting cron service ...")
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if err := cron.Run(ctx, _store); err != nil {
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go stopServerFunc(err)
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return err
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}
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log.Info().Msg("cron service stopped")
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return nil
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})
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// start the grpc server
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serviceWaitingGroup.Go(func() error {
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log.Info().Msg("starting grpc server ...")
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if err := runGrpcServer(ctx, c, _store); err != nil {
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// stop whole server as grpc is essential
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go stopServerFunc(err)
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return err
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}
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return nil
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})
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proxyWebUI := c.String("www-proxy")
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var webUIServe func(w http.ResponseWriter, r *http.Request)
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if proxyWebUI == "" {
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webEngine, err := web.New()
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if err != nil {
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log.Error().Err(err).Msg("failed to create web engine")
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return err
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}
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webUIServe = webEngine.ServeHTTP
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} else {
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origin, _ := url.Parse(proxyWebUI)
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director := func(req *http.Request) {
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req.Header.Add("X-Forwarded-Host", req.Host)
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req.Header.Add("X-Origin-Host", origin.Host)
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req.URL.Scheme = origin.Scheme
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req.URL.Host = origin.Host
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}
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proxy := &httputil.ReverseProxy{Director: director}
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webUIServe = proxy.ServeHTTP
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}
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// setup the server and start the listener
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handler := router.Load(
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webUIServe,
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middleware.Logger(time.RFC3339, true),
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middleware.Version,
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middleware.Store(_store),
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)
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switch {
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case c.String("server-cert") != "":
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// start the server with tls enabled
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serviceWaitingGroup.Go(func() error {
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tlsServer := &http.Server{
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Addr: server.Config.Server.PortTLS,
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Handler: handler,
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TLSConfig: &tls.Config{
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NextProtos: []string{"h2", "http/1.1"},
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},
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}
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go func() {
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<-ctx.Done()
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log.Info().Msg("shutdown tls server ...")
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if err := tlsServer.Shutdown(shutdownCtx); err != nil { //nolint:contextcheck
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log.Error().Err(err).Msg("shutdown tls server failed")
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} else {
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log.Info().Msg("tls server stopped")
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}
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}()
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log.Info().Msg("starting tls server ...")
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err := tlsServer.ListenAndServeTLS(
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c.String("server-cert"),
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c.String("server-key"),
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)
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if err != nil && !errors.Is(err, http.ErrServerClosed) {
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log.Error().Err(err).Msg("TLS server failed")
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stopServerFunc(fmt.Errorf("TLS server failed: %w", err))
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}
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return err
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})
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// http to https redirect
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redirect := func(w http.ResponseWriter, req *http.Request) {
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serverURL, _ := url.Parse(server.Config.Server.Host)
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req.URL.Scheme = "https"
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req.URL.Host = serverURL.Host
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w.Header().Set("Strict-Transport-Security", "max-age=31536000")
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http.Redirect(w, req, req.URL.String(), http.StatusMovedPermanently)
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}
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serviceWaitingGroup.Go(func() error {
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redirectServer := &http.Server{
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Addr: server.Config.Server.Port,
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Handler: http.HandlerFunc(redirect),
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}
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go func() {
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<-ctx.Done()
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log.Info().Msg("shutdown redirect server ...")
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if err := redirectServer.Shutdown(shutdownCtx); err != nil { //nolint:contextcheck
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log.Error().Err(err).Msg("shutdown redirect server failed")
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} else {
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log.Info().Msg("redirect server stopped")
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}
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}()
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log.Info().Msg("starting redirect server ...")
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if err := redirectServer.ListenAndServe(); err != nil && !errors.Is(err, http.ErrServerClosed) {
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log.Error().Err(err).Msg("redirect server failed")
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stopServerFunc(fmt.Errorf("redirect server failed: %w", err))
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}
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return nil
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})
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case c.Bool("lets-encrypt"):
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// start the server with lets-encrypt
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certmagic.DefaultACME.Email = c.String("lets-encrypt-email")
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certmagic.DefaultACME.Agreed = true
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address, err := url.Parse(strings.TrimSuffix(c.String("server-host"), "/"))
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if err != nil {
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return err
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}
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serviceWaitingGroup.Go(func() error {
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go func() {
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<-ctx.Done()
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log.Error().Msg("there is no certmagic.HTTPS alternative who is context aware we will fail in 2 seconds")
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time.Sleep(time.Second * 2)
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log.Fatal().Msg("we kill certmagic by fail") //nolint:forbidigo
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}()
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log.Info().Msg("starting certmagic server ...")
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if err := certmagic.HTTPS([]string{address.Host}, handler); err != nil {
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log.Error().Err(err).Msg("certmagic does not work")
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stopServerFunc(fmt.Errorf("certmagic failed: %w", err))
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}
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return nil
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})
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default:
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// start the server without tls
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serviceWaitingGroup.Go(func() error {
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httpServer := &http.Server{
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Addr: c.String("server-addr"),
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Handler: handler,
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}
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go func() {
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<-ctx.Done()
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log.Info().Msg("shutdown http server ...")
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if err := httpServer.Shutdown(shutdownCtx); err != nil { //nolint:contextcheck
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log.Error().Err(err).Msg("shutdown http server failed")
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} else {
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log.Info().Msg("http server stopped")
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}
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}()
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log.Info().Msg("starting http server ...")
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if err := httpServer.ListenAndServe(); err != nil && !errors.Is(err, http.ErrServerClosed) {
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log.Error().Err(err).Msg("http server failed")
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stopServerFunc(fmt.Errorf("http server failed: %w", err))
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}
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return err
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})
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}
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if metricsServerAddr := c.String("metrics-server-addr"); metricsServerAddr != "" {
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serviceWaitingGroup.Go(func() error {
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metricsRouter := gin.New()
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metricsRouter.GET("/metrics", gin.WrapH(prometheus_http.Handler()))
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metricsServer := &http.Server{
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Addr: metricsServerAddr,
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Handler: metricsRouter,
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}
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go func() {
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<-ctx.Done()
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log.Info().Msg("shutdown metrics server ...")
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if err := metricsServer.Shutdown(shutdownCtx); err != nil { //nolint:contextcheck
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log.Error().Err(err).Msg("shutdown metrics server failed")
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} else {
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log.Info().Msg("metrics server stopped")
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}
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}()
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log.Info().Msg("starting metrics server ...")
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if err := metricsServer.ListenAndServe(); err != nil && !errors.Is(err, http.ErrServerClosed) {
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log.Error().Err(err).Msg("metrics server failed")
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stopServerFunc(fmt.Errorf("metrics server failed: %w", err))
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}
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return err
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})
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}
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return serviceWaitingGroup.Wait()
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}
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